./Ultimate.py --spec ../../sv-benchmarks/c/Systems_DeviceDriversLinux64_ReachSafety.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i -s /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a89a64f5289ba9e048bf8d3e685f4757a2b71072 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i -s /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a89a64f5289ba9e048bf8d3e685f4757a2b71072 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:39:20,323 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:39:20,324 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:39:20,332 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:39:20,332 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:39:20,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:39:20,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:39:20,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:39:20,336 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:39:20,337 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:39:20,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:39:20,338 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:39:20,338 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:39:20,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:39:20,340 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:39:20,341 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:39:20,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:39:20,343 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:39:20,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:39:20,347 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:39:20,348 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:39:20,349 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:39:20,351 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:39:20,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:39:20,351 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:39:20,352 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:39:20,353 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:39:20,353 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:39:20,354 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:39:20,355 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:39:20,356 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:39:20,356 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:39:20,356 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:39:20,357 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:39:20,357 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:39:20,358 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:39:20,358 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-18 12:39:20,370 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:39:20,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:39:20,371 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:39:20,371 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:39:20,371 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:39:20,371 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:39:20,372 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:39:20,373 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:39:20,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:39:20,374 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:39:20,374 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:39:20,374 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:39:20,374 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:39:20,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:39:20,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:39:20,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-18 12:39:20,376 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a89a64f5289ba9e048bf8d3e685f4757a2b71072 [2018-11-18 12:39:20,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:39:20,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:39:20,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:39:20,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:39:20,417 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:39:20,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 12:39:20,459 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/1bf2f834f/e357e77aed69455c85433e7bde995554/FLAG0d1a0971d [2018-11-18 12:39:20,946 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:39:20,947 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 12:39:20,969 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/1bf2f834f/e357e77aed69455c85433e7bde995554/FLAG0d1a0971d [2018-11-18 12:39:21,239 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/1bf2f834f/e357e77aed69455c85433e7bde995554 [2018-11-18 12:39:21,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:39:21,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:39:21,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:39:21,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:39:21,249 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:39:21,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:39:21" (1/1) ... [2018-11-18 12:39:21,252 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf02f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:21, skipping insertion in model container [2018-11-18 12:39:21,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:39:21" (1/1) ... [2018-11-18 12:39:21,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:39:21,333 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:39:21,971 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:39:22,120 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:39:22,349 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:39:22,373 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:39:22,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22 WrapperNode [2018-11-18 12:39:22,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:39:22,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:39:22,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:39:22,374 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:39:22,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:39:22,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:39:22,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:39:22,401 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:39:22,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... [2018-11-18 12:39:22,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:39:22,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:39:22,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:39:22,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:39:22,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:39:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:39:22,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:39:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-18 12:39:22,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-18 12:39:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:39:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 12:39:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-18 12:39:22,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2018-11-18 12:39:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-18 12:39:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-18 12:39:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:39:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-18 12:39:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-18 12:39:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2018-11-18 12:39:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-18 12:39:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-18 12:39:22,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 12:39:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-18 12:39:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-18 12:39:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:39:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:39:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-18 12:39:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-18 12:39:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2018-11-18 12:39:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2018-11-18 12:39:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-18 12:39:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:39:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:39:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-18 12:39:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-18 12:39:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-11-18 12:39:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-11-18 12:39:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2018-11-18 12:39:22,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2018-11-18 12:39:22,604 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 12:39:22,604 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 12:39:22,826 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:39:22,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:22 BoogieIcfgContainer [2018-11-18 12:39:22,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:39:22,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:39:22,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:39:22,831 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:39:22,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:39:21" (1/3) ... [2018-11-18 12:39:22,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627ff3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:39:22, skipping insertion in model container [2018-11-18 12:39:22,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:22" (2/3) ... [2018-11-18 12:39:22,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627ff3ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:39:22, skipping insertion in model container [2018-11-18 12:39:22,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:22" (3/3) ... [2018-11-18 12:39:22,833 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 12:39:22,839 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:39:22,845 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:39:22,855 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:39:22,883 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:39:22,883 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:39:22,884 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:39:22,884 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:39:22,884 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:39:22,884 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:39:22,884 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:39:22,885 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:39:22,901 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-18 12:39:22,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:39:22,907 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:22,907 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:22,910 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:22,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:22,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1059402160, now seen corresponding path program 1 times [2018-11-18 12:39:22,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:39:22,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:22,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:22,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:22,963 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:39:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:23,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:23,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:39:23,096 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:39:23,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:39:23,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:39:23,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:39:23,117 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2018-11-18 12:39:23,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:23,180 INFO L93 Difference]: Finished difference Result 191 states and 242 transitions. [2018-11-18 12:39:23,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:39:23,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-18 12:39:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:23,192 INFO L225 Difference]: With dead ends: 191 [2018-11-18 12:39:23,192 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 12:39:23,195 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:39:23,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 12:39:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2018-11-18 12:39:23,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-18 12:39:23,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2018-11-18 12:39:23,239 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 16 [2018-11-18 12:39:23,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:23,239 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2018-11-18 12:39:23,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:39:23,240 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2018-11-18 12:39:23,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 12:39:23,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:23,242 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:23,243 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:23,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:23,243 INFO L82 PathProgramCache]: Analyzing trace with hash -585637001, now seen corresponding path program 1 times [2018-11-18 12:39:23,243 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:39:23,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:23,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:23,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:23,250 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:39:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:23,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:23,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:23,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:39:23,383 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:39:23,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:39:23,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:39:23,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:23,385 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand 7 states. [2018-11-18 12:39:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:23,422 INFO L93 Difference]: Finished difference Result 207 states and 254 transitions. [2018-11-18 12:39:23,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:39:23,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-18 12:39:23,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:23,425 INFO L225 Difference]: With dead ends: 207 [2018-11-18 12:39:23,425 INFO L226 Difference]: Without dead ends: 108 [2018-11-18 12:39:23,426 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:23,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-18 12:39:23,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2018-11-18 12:39:23,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 12:39:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2018-11-18 12:39:23,440 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 48 [2018-11-18 12:39:23,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:23,440 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2018-11-18 12:39:23,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:39:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2018-11-18 12:39:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 12:39:23,442 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:23,442 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:23,442 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:23,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:23,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1243718701, now seen corresponding path program 1 times [2018-11-18 12:39:23,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:39:23,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:23,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:23,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:23,447 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:39:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:23,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:23,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:23,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:39:23,607 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:39:23,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:39:23,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:39:23,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:23,609 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 7 states. [2018-11-18 12:39:23,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:23,959 INFO L93 Difference]: Finished difference Result 181 states and 213 transitions. [2018-11-18 12:39:23,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:39:23,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 49 [2018-11-18 12:39:23,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:23,963 INFO L225 Difference]: With dead ends: 181 [2018-11-18 12:39:23,963 INFO L226 Difference]: Without dead ends: 178 [2018-11-18 12:39:23,964 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:39:23,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-11-18 12:39:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 164. [2018-11-18 12:39:23,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-11-18 12:39:23,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 198 transitions. [2018-11-18 12:39:23,984 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 198 transitions. Word has length 49 [2018-11-18 12:39:23,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:23,985 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 198 transitions. [2018-11-18 12:39:23,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:39:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 198 transitions. [2018-11-18 12:39:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 12:39:23,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:23,986 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:23,987 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:23,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:23,988 INFO L82 PathProgramCache]: Analyzing trace with hash -26818538, now seen corresponding path program 1 times [2018-11-18 12:39:23,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:39:23,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:23,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:23,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:23,991 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:39:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:24,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:24,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:39:24,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:39:24,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:39:24,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:39:24,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:24,053 INFO L87 Difference]: Start difference. First operand 164 states and 198 transitions. Second operand 7 states. [2018-11-18 12:39:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:24,119 INFO L93 Difference]: Finished difference Result 291 states and 351 transitions. [2018-11-18 12:39:24,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:39:24,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-11-18 12:39:24,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:24,124 INFO L225 Difference]: With dead ends: 291 [2018-11-18 12:39:24,124 INFO L226 Difference]: Without dead ends: 167 [2018-11-18 12:39:24,125 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-18 12:39:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2018-11-18 12:39:24,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-11-18 12:39:24,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 196 transitions. [2018-11-18 12:39:24,142 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 196 transitions. Word has length 50 [2018-11-18 12:39:24,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:24,143 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 196 transitions. [2018-11-18 12:39:24,143 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:39:24,143 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 196 transitions. [2018-11-18 12:39:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 12:39:24,145 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:24,145 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:24,145 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:24,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:24,146 INFO L82 PathProgramCache]: Analyzing trace with hash -799234353, now seen corresponding path program 1 times [2018-11-18 12:39:24,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:39:24,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:24,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:24,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:39:24,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:39:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:24,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:24,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 12:39:24,508 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:39:24,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:39:24,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:39:24,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:39:24,508 INFO L87 Difference]: Start difference. First operand 164 states and 196 transitions. Second operand 12 states. [2018-11-18 12:39:24,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:24,614 INFO L93 Difference]: Finished difference Result 179 states and 219 transitions. [2018-11-18 12:39:24,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:39:24,615 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2018-11-18 12:39:24,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:24,615 INFO L225 Difference]: With dead ends: 179 [2018-11-18 12:39:24,615 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:39:24,616 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:39:24,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:39:24,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:39:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:39:24,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:39:24,617 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-11-18 12:39:24,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:24,617 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:39:24,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:39:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:39:24,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:39:24,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:39:24,832 INFO L421 ceAbstractionStarter]: At program point L4959(line 4959) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,832 INFO L425 ceAbstractionStarter]: For program point L4959-1(line 4959) no Hoare annotation was computed. [2018-11-18 12:39:24,832 INFO L425 ceAbstractionStarter]: For program point L4961(lines 4961 4965) no Hoare annotation was computed. [2018-11-18 12:39:24,832 INFO L425 ceAbstractionStarter]: For program point L4992(lines 4992 4996) no Hoare annotation was computed. [2018-11-18 12:39:24,832 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 12:39:24,833 INFO L425 ceAbstractionStarter]: For program point L4978(line 4978) no Hoare annotation was computed. [2018-11-18 12:39:24,833 INFO L425 ceAbstractionStarter]: For program point L5003(line 5003) no Hoare annotation was computed. [2018-11-18 12:39:24,833 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 12:39:24,833 INFO L421 ceAbstractionStarter]: At program point L4972(lines 4971 4986) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,833 INFO L421 ceAbstractionStarter]: At program point L4999(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,833 INFO L421 ceAbstractionStarter]: At program point L4995(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (= 1 ~ldv_module_refcounter~0) (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,833 INFO L425 ceAbstractionStarter]: For program point $Ultimate##5(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 12:39:24,833 INFO L425 ceAbstractionStarter]: For program point $Ultimate##6(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 12:39:24,834 INFO L421 ceAbstractionStarter]: At program point L4993(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,834 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 4946 5007) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,834 INFO L421 ceAbstractionStarter]: At program point L4987(lines 4955 5006) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,834 INFO L425 ceAbstractionStarter]: For program point L4971(lines 4971 4986) no Hoare annotation was computed. [2018-11-18 12:39:24,834 INFO L428 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 5029 5048) the Hoare annotation is: true [2018-11-18 12:39:24,834 INFO L425 ceAbstractionStarter]: For program point L5037(lines 5037 5042) no Hoare annotation was computed. [2018-11-18 12:39:24,834 INFO L425 ceAbstractionStarter]: For program point L5033(lines 5033 5045) no Hoare annotation was computed. [2018-11-18 12:39:24,834 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 12:39:24,835 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 12:39:24,835 INFO L425 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 12:39:24,835 INFO L428 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4922 4931) the Hoare annotation is: true [2018-11-18 12:39:24,835 INFO L425 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 12:39:24,835 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:24,835 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) [2018-11-18 12:39:24,835 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:24,835 INFO L421 ceAbstractionStarter]: At program point L4914(line 4914) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,835 INFO L425 ceAbstractionStarter]: For program point L4885(lines 4885 4892) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L425 ceAbstractionStarter]: For program point L4914-1(line 4914) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L425 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L425 ceAbstractionStarter]: For program point L4894(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L421 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4879 4920) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,836 INFO L425 ceAbstractionStarter]: For program point L4894-2(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L425 ceAbstractionStarter]: For program point L4888(lines 4888 4892) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L421 ceAbstractionStarter]: At program point L4915(line 4915) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,836 INFO L425 ceAbstractionStarter]: For program point L4915-1(line 4915) no Hoare annotation was computed. [2018-11-18 12:39:24,836 INFO L421 ceAbstractionStarter]: At program point L4917(lines 4883 4919) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (= 1 ~ldv_module_refcounter~0) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,837 INFO L425 ceAbstractionStarter]: For program point L4907(lines 4907 4911) no Hoare annotation was computed. [2018-11-18 12:39:24,837 INFO L425 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 12:39:24,837 INFO L421 ceAbstractionStarter]: At program point L4905(line 4905) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (or (not (= 1 |old(~ldv_module_refcounter~0)|)) (not (= (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse0)) (not (= ((as const (Array Int Int)) 0) .cse0)))) [2018-11-18 12:39:24,837 INFO L425 ceAbstractionStarter]: For program point L4905-1(line 4905) no Hoare annotation was computed. [2018-11-18 12:39:24,837 INFO L425 ceAbstractionStarter]: For program point L4901(lines 4901 4912) no Hoare annotation was computed. [2018-11-18 12:39:24,837 INFO L428 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5086 5099) the Hoare annotation is: true [2018-11-18 12:39:24,837 INFO L425 ceAbstractionStarter]: For program point L5090(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 12:39:24,837 INFO L425 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 12:39:24,837 INFO L421 ceAbstractionStarter]: At program point L5092(line 5092) the Hoare annotation is: (not (= 1 ~ldv_module_refcounter~0)) [2018-11-18 12:39:24,838 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 12:39:24,838 INFO L428 ceAbstractionStarter]: At program point L5105(line 5105) the Hoare annotation is: true [2018-11-18 12:39:24,838 INFO L425 ceAbstractionStarter]: For program point L5105-1(line 5105) no Hoare annotation was computed. [2018-11-18 12:39:24,838 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 12:39:24,838 INFO L428 ceAbstractionStarter]: At program point ldv_try_module_get_1ENTRY(lines 5100 5109) the Hoare annotation is: true [2018-11-18 12:39:24,838 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:24,838 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|))) (and (= ((as const (Array Int Int)) 0) .cse0) (= 1 ~ldv_module_refcounter~0) (= .cse0 (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|)))) [2018-11-18 12:39:24,838 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:39:24,838 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:24,838 INFO L425 ceAbstractionStarter]: For program point L5054(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L428 ceAbstractionStarter]: At program point L5056(line 5056) the Hoare annotation is: true [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point L5053-2(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point L5053(lines 5053 5064) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point L5054-1(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L428 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 5049 5067) the Hoare annotation is: true [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L428 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~intENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~intFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 12:39:24,839 INFO L428 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4932 4941) the Hoare annotation is: true [2018-11-18 12:39:24,839 INFO L425 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 12:39:24,840 INFO L428 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 5008 5014) the Hoare annotation is: true [2018-11-18 12:39:24,840 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5012) no Hoare annotation was computed. [2018-11-18 12:39:24,840 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 12:39:24,840 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 12:39:24,840 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 12:39:24,840 INFO L428 ceAbstractionStarter]: At program point L5115(line 5115) the Hoare annotation is: true [2018-11-18 12:39:24,840 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 12:39:24,840 INFO L428 ceAbstractionStarter]: At program point ldv_module_put_2ENTRY(lines 5110 5119) the Hoare annotation is: true [2018-11-18 12:39:24,844 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 12:39:24,846 INFO L168 Benchmark]: Toolchain (without parser) took 3603.17 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -189.3 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:24,848 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:24,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1128.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -69.7 MB). Peak memory consumption was 158.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:24,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:24,849 INFO L168 Benchmark]: Boogie Preprocessor took 32.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:24,849 INFO L168 Benchmark]: RCFGBuilder took 393.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 981.6 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:24,850 INFO L168 Benchmark]: TraceAbstraction took 2017.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.8 MB). Free memory was 981.6 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:24,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1128.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -69.7 MB). Peak memory consumption was 158.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 393.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 981.6 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2017.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.8 MB). Free memory was 981.6 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5012]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:39:26,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:39:26,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:39:26,362 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:39:26,363 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:39:26,363 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:39:26,364 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:39:26,365 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:39:26,366 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:39:26,367 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:39:26,368 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:39:26,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:39:26,368 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:39:26,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:39:26,370 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:39:26,371 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:39:26,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:39:26,373 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:39:26,374 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:39:26,376 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:39:26,376 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:39:26,377 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:39:26,379 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:39:26,379 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:39:26,380 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:39:26,380 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:39:26,381 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:39:26,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:39:26,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:39:26,384 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:39:26,384 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:39:26,384 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:39:26,384 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:39:26,385 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:39:26,385 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:39:26,386 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:39:26,386 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2018-11-18 12:39:26,397 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:39:26,397 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:39:26,398 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:39:26,398 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:39:26,398 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:39:26,398 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:39:26,399 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:39:26,399 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:39:26,399 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:39:26,399 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:39:26,400 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:39:26,400 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:39:26,401 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:39:26,401 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:39:26,401 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:39:26,401 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:39:26,401 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:39:26,401 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:39:26,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:39:26,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:39:26,402 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a89a64f5289ba9e048bf8d3e685f4757a2b71072 [2018-11-18 12:39:26,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:39:26,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:39:26,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:39:26,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:39:26,443 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:39:26,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 12:39:26,479 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/f7322e719/828a0da5a1ab40a9a00ecd3b79765514/FLAGcd573621d [2018-11-18 12:39:27,002 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:39:27,002 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 12:39:27,018 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/f7322e719/828a0da5a1ab40a9a00ecd3b79765514/FLAGcd573621d [2018-11-18 12:39:27,461 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/data/f7322e719/828a0da5a1ab40a9a00ecd3b79765514 [2018-11-18 12:39:27,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:39:27,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:39:27,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:39:27,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:39:27,469 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:39:27,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:39:27" (1/1) ... [2018-11-18 12:39:27,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f925792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:27, skipping insertion in model container [2018-11-18 12:39:27,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:39:27" (1/1) ... [2018-11-18 12:39:27,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:39:27,547 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:39:28,158 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:39:28,266 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:39:28,463 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:39:28,488 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:39:28,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28 WrapperNode [2018-11-18 12:39:28,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:39:28,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:39:28,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:39:28,489 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:39:28,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:39:28,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:39:28,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:39:28,515 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:39:28,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... [2018-11-18 12:39:28,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:39:28,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:39:28,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:39:28,546 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:39:28,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:39:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:39:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:39:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2018-11-18 12:39:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2018-11-18 12:39:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 12:39:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure sock_unregister [2018-11-18 12:39:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_int [2018-11-18 12:39:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_create [2018-11-18 12:39:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_create [2018-11-18 12:39:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:39:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 12:39:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2018-11-18 12:39:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_exit [2018-11-18 12:39:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_exit [2018-11-18 12:39:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-11-18 12:39:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-11-18 12:39:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 12:39:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure pppox_init [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pppox_init [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure sock_register [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2018-11-18 12:39:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2018-11-18 12:39:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_2 [2018-11-18 12:39:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_2 [2018-11-18 12:39:28,714 WARN L684 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 12:39:28,714 WARN L649 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 12:39:28,983 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:39:28,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:28 BoogieIcfgContainer [2018-11-18 12:39:28,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:39:28,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:39:28,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:39:28,988 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:39:28,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:39:27" (1/3) ... [2018-11-18 12:39:28,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495b4df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:39:28, skipping insertion in model container [2018-11-18 12:39:28,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:39:28" (2/3) ... [2018-11-18 12:39:28,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@495b4df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:39:28, skipping insertion in model container [2018-11-18 12:39:28,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:28" (3/3) ... [2018-11-18 12:39:28,990 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-pppox_false-termination.ko_true-unreach-call.cil.out.i.pp.i [2018-11-18 12:39:28,998 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:39:29,005 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:39:29,017 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:39:29,042 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:39:29,043 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:39:29,043 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:39:29,043 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:39:29,043 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:39:29,043 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:39:29,043 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:39:29,043 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:39:29,043 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:39:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-18 12:39:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 12:39:29,060 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:29,061 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:29,062 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:29,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:29,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1059402160, now seen corresponding path program 1 times [2018-11-18 12:39:29,071 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 12:39:29,071 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 12:39:29,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:29,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:39:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:29,163 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:39:29,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:29,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:39:29,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:39:29,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:39:29,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:39:29,179 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 3 states. [2018-11-18 12:39:29,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:29,228 INFO L93 Difference]: Finished difference Result 191 states and 242 transitions. [2018-11-18 12:39:29,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:39:29,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-18 12:39:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:29,239 INFO L225 Difference]: With dead ends: 191 [2018-11-18 12:39:29,239 INFO L226 Difference]: Without dead ends: 114 [2018-11-18 12:39:29,241 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:39:29,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-11-18 12:39:29,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2018-11-18 12:39:29,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-11-18 12:39:29,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 133 transitions. [2018-11-18 12:39:29,279 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 133 transitions. Word has length 16 [2018-11-18 12:39:29,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:29,279 INFO L480 AbstractCegarLoop]: Abstraction has 111 states and 133 transitions. [2018-11-18 12:39:29,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:39:29,279 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 133 transitions. [2018-11-18 12:39:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 12:39:29,281 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:29,282 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:29,282 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:29,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:29,282 INFO L82 PathProgramCache]: Analyzing trace with hash 373593015, now seen corresponding path program 1 times [2018-11-18 12:39:29,283 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 12:39:29,283 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 12:39:29,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:29,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:39:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:29,415 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:39:29,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:29,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:39:29,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:39:29,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:39:29,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:29,419 INFO L87 Difference]: Start difference. First operand 111 states and 133 transitions. Second operand 7 states. [2018-11-18 12:39:29,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:29,455 INFO L93 Difference]: Finished difference Result 207 states and 254 transitions. [2018-11-18 12:39:29,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:39:29,459 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-11-18 12:39:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:29,461 INFO L225 Difference]: With dead ends: 207 [2018-11-18 12:39:29,461 INFO L226 Difference]: Without dead ends: 108 [2018-11-18 12:39:29,462 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:29,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-18 12:39:29,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 102. [2018-11-18 12:39:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 12:39:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2018-11-18 12:39:29,471 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 48 [2018-11-18 12:39:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:29,472 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2018-11-18 12:39:29,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:39:29,472 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2018-11-18 12:39:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-11-18 12:39:29,473 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:29,473 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:29,473 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:29,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:29,473 INFO L82 PathProgramCache]: Analyzing trace with hash -284488685, now seen corresponding path program 1 times [2018-11-18 12:39:29,474 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 12:39:29,474 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 12:39:29,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:29,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:39:29,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:29,658 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:39:29,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:29,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:39:29,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:39:29,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:39:29,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:39:29,664 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 6 states. [2018-11-18 12:39:30,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:30,054 INFO L93 Difference]: Finished difference Result 220 states and 262 transitions. [2018-11-18 12:39:30,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:39:30,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-11-18 12:39:30,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:30,057 INFO L225 Difference]: With dead ends: 220 [2018-11-18 12:39:30,057 INFO L226 Difference]: Without dead ends: 210 [2018-11-18 12:39:30,058 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:39:30,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2018-11-18 12:39:30,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 134. [2018-11-18 12:39:30,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-18 12:39:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2018-11-18 12:39:30,076 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 49 [2018-11-18 12:39:30,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:30,077 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2018-11-18 12:39:30,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:39:30,077 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2018-11-18 12:39:30,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 12:39:30,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:30,078 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:30,078 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:30,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:30,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1859084202, now seen corresponding path program 1 times [2018-11-18 12:39:30,079 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 12:39:30,079 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 12:39:30,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:30,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:30,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:39:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:30,181 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:39:30,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:30,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:39:30,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:39:30,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:39:30,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:30,188 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 7 states. [2018-11-18 12:39:30,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:30,236 INFO L93 Difference]: Finished difference Result 205 states and 235 transitions. [2018-11-18 12:39:30,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:39:30,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-11-18 12:39:30,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:30,238 INFO L225 Difference]: With dead ends: 205 [2018-11-18 12:39:30,238 INFO L226 Difference]: Without dead ends: 140 [2018-11-18 12:39:30,239 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:39:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-11-18 12:39:30,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2018-11-18 12:39:30,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2018-11-18 12:39:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 151 transitions. [2018-11-18 12:39:30,253 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 151 transitions. Word has length 50 [2018-11-18 12:39:30,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:30,253 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 151 transitions. [2018-11-18 12:39:30,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:39:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 151 transitions. [2018-11-18 12:39:30,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 12:39:30,256 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:39:30,256 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:39:30,256 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:39:30,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:39:30,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1217745073, now seen corresponding path program 1 times [2018-11-18 12:39:30,257 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 12:39:30,257 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 12:39:30,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:39:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:39:30,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:39:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:39:31,355 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:39:31,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:39:31,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-18 12:39:31,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 12:39:31,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 12:39:31,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2018-11-18 12:39:31,358 INFO L87 Difference]: Start difference. First operand 134 states and 151 transitions. Second operand 14 states. [2018-11-18 12:39:34,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:39:34,421 INFO L93 Difference]: Finished difference Result 182 states and 208 transitions. [2018-11-18 12:39:34,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-18 12:39:34,423 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2018-11-18 12:39:34,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:39:34,423 INFO L225 Difference]: With dead ends: 182 [2018-11-18 12:39:34,424 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:39:34,424 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2018-11-18 12:39:34,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:39:34,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:39:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:39:34,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:39:34,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2018-11-18 12:39:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:39:34,425 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:39:34,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 12:39:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:39:34,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:39:34,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:39:34,771 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 30 [2018-11-18 12:39:34,935 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2018-11-18 12:39:35,201 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2018-11-18 12:39:35,404 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2018-11-18 12:39:35,522 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 7 [2018-11-18 12:39:35,631 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 14 [2018-11-18 12:39:35,713 INFO L421 ceAbstractionStarter]: At program point L4959(line 4959) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point L4959-1(line 4959) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point L4961(lines 4961 4965) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point L4992(lines 4992 4996) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point L4978(line 4978) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point L5003(line 5003) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4946 5007) no Hoare annotation was computed. [2018-11-18 12:39:35,714 INFO L421 ceAbstractionStarter]: At program point L4972(lines 4971 4986) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,714 INFO L421 ceAbstractionStarter]: At program point L4999(lines 4955 5006) the Hoare annotation is: (or (= (_ bv1 32) ~ldv_module_refcounter~0) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 12:39:35,714 INFO L421 ceAbstractionStarter]: At program point L4995(lines 4955 5006) the Hoare annotation is: (or (= (_ bv1 32) ~ldv_module_refcounter~0) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 12:39:35,714 INFO L425 ceAbstractionStarter]: For program point $Ultimate##5(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point $Ultimate##6(lines 4975 4985) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L421 ceAbstractionStarter]: At program point L4993(lines 4955 5006) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,715 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 4946 5007) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,715 INFO L421 ceAbstractionStarter]: At program point L4987(lines 4955 5006) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point L4971(lines 4971 4986) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L421 ceAbstractionStarter]: At program point ldv_try_module_getENTRY(lines 5029 5048) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point L5037(lines 5037 5042) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point L5033(lines 5033 5045) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getFINAL(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_getEXIT(lines 5029 5048) no Hoare annotation was computed. [2018-11-18 12:39:35,715 INFO L425 ceAbstractionStarter]: For program point pppox_initFINAL(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L428 ceAbstractionStarter]: At program point pppox_initENTRY(lines 4922 4931) the Hoare annotation is: true [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point pppox_initEXIT(lines 4922 4931) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L421 ceAbstractionStarter]: At program point L4914(line 4914) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (and (= (bvadd |old(~ldv_module_refcounter~0)| (_ bv1 32)) ~ldv_module_refcounter~0) (= (bvadd pppox_create_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))))))) [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point L4885(lines 4885 4892) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point L4914-1(line 4914) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point pppox_createFINAL(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L425 ceAbstractionStarter]: For program point L4894(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 12:39:35,716 INFO L421 ceAbstractionStarter]: At program point pppox_createENTRY(lines 4879 4920) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,717 INFO L425 ceAbstractionStarter]: For program point L4894-2(lines 4894 4900) no Hoare annotation was computed. [2018-11-18 12:39:35,717 INFO L425 ceAbstractionStarter]: For program point L4888(lines 4888 4892) no Hoare annotation was computed. [2018-11-18 12:39:35,717 INFO L421 ceAbstractionStarter]: At program point L4915(line 4915) the Hoare annotation is: (or (and (= (bvadd |old(~ldv_module_refcounter~0)| (_ bv1 32)) ~ldv_module_refcounter~0) (= (bvadd pppox_create_~tmp~2 (_ bv4294967295 32)) (_ bv0 32)) (exists ((pppox_create_~protocol (_ BitVec 32))) (let ((.cse4 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse2 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse4)) (.cse3 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse4) (_ bv16 32)))) (let ((.cse0 (select (select |#memory_$Pointer$.offset| .cse2) .cse3)) (.cse1 (select (select |#memory_$Pointer$.base| .cse2) .cse3))) (and (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (bvadd .cse0 .cse1)))) (= |pppox_create_#t~mem45.offset| .cse0) (= |pppox_create_#t~mem45.base| .cse1)))))) (not (= ((_ sign_extend 32) (_ bv0 32)) ((_ sign_extend 32) (let ((.cse7 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse5 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse7)) (.cse6 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse7) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse5) .cse6) (select (select |#memory_$Pointer$.base| .cse5) .cse6)))))))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 12:39:35,717 INFO L425 ceAbstractionStarter]: For program point L4915-1(line 4915) no Hoare annotation was computed. [2018-11-18 12:39:35,717 INFO L421 ceAbstractionStarter]: At program point L4917(lines 4883 4919) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,717 INFO L425 ceAbstractionStarter]: For program point L4907(lines 4907 4911) no Hoare annotation was computed. [2018-11-18 12:39:35,717 INFO L425 ceAbstractionStarter]: For program point pppox_createEXIT(lines 4879 4920) no Hoare annotation was computed. [2018-11-18 12:39:35,717 INFO L421 ceAbstractionStarter]: At program point L4905(line 4905) the Hoare annotation is: (or (let ((.cse2 (bvadd (bvmul (_ bv8 32) pppox_create_~protocol) |~#pppox_protos~0.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= |pppox_create_#t~mem35.base| (select (select |#memory_$Pointer$.base| .cse0) .cse1)) (= (select (select |#memory_$Pointer$.offset| .cse0) .cse1) |pppox_create_#t~mem35.offset|)))) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 12:39:35,717 INFO L425 ceAbstractionStarter]: For program point L4905-1(line 4905) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point L4901(lines 4901 4912) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L428 ceAbstractionStarter]: At program point ldv_check_final_stateENTRY(lines 5086 5099) the Hoare annotation is: true [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point L5090(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point ldv_check_final_stateEXIT(lines 5086 5099) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L421 ceAbstractionStarter]: At program point L5092(line 5092) the Hoare annotation is: (not (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1FINAL(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L421 ceAbstractionStarter]: At program point L5105(line 5105) the Hoare annotation is: (or (and (= (_ bv1 32) ~ldv_module_refcounter~0) (= ldv_try_module_get_1_~module.base |ldv_try_module_get_1_#in~module.base|) (= |ldv_try_module_get_1_#in~module.offset| ldv_try_module_get_1_~module.offset)) (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|))) [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point L5105-1(line 5105) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point ldv_try_module_get_1EXIT(lines 5100 5109) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L421 ceAbstractionStarter]: At program point ldv_try_module_get_1ENTRY(lines 5100 5109) the Hoare annotation is: (or (not (= (_ bv1 32) |old(~ldv_module_refcounter~0)|)) (= (_ bv1 32) ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,718 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:35,718 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= (_ bv1 32) ~ldv_module_refcounter~0) [2018-11-18 12:39:35,719 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point L5054(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L421 ceAbstractionStarter]: At program point L5056(line 5056) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32))))) [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point L5053-2(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point L5053(lines 5053 5064) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point L5054-1(lines 5054 5060) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L421 ceAbstractionStarter]: At program point ldv_module_putENTRY(lines 5049 5067) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point ldv_module_putEXIT(lines 5049 5067) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point pppox_exitEXIT(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 12:39:35,719 INFO L428 ceAbstractionStarter]: At program point pppox_exitENTRY(lines 4932 4941) the Hoare annotation is: true [2018-11-18 12:39:35,719 INFO L425 ceAbstractionStarter]: For program point pppox_exitFINAL(lines 4932 4941) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~C_INTFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ##fun~$Pointer$~X~$Pointer$~TO~C_INTEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L428 ceAbstractionStarter]: At program point ##fun~$Pointer$~X~$Pointer$~TO~C_INTENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:39:35,720 INFO L428 ceAbstractionStarter]: At program point ldv_blast_assertENTRY(lines 5008 5014) the Hoare annotation is: true [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertEXIT(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5012) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ldv_blast_assertFINAL(lines 5008 5014) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2FINAL(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 12:39:35,720 INFO L421 ceAbstractionStarter]: At program point L5115(line 5115) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (and (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0) (= |ldv_module_put_2_#in~ldv_func_arg1.offset| ldv_module_put_2_~ldv_func_arg1.offset) (= ldv_module_put_2_~ldv_func_arg1.base |ldv_module_put_2_#in~ldv_func_arg1.base|))) [2018-11-18 12:39:35,720 INFO L425 ceAbstractionStarter]: For program point ldv_module_put_2EXIT(lines 5110 5119) no Hoare annotation was computed. [2018-11-18 12:39:35,721 INFO L421 ceAbstractionStarter]: At program point ldv_module_put_2ENTRY(lines 5110 5119) the Hoare annotation is: (or (not (= (_ bv2 32) |old(~ldv_module_refcounter~0)|)) (forall ((v_pppox_create_~protocol_BEFORE_CALL_2 (_ BitVec 32))) (= ((_ sign_extend 32) (let ((.cse2 (bvadd |~#pppox_protos~0.offset| (bvmul (_ bv8 32) v_pppox_create_~protocol_BEFORE_CALL_2)))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |~#pppox_protos~0.base|) .cse2)) (.cse1 (bvadd (select (select |#memory_$Pointer$.offset| |~#pppox_protos~0.base|) .cse2) (_ bv16 32)))) (bvadd (select (select |#memory_$Pointer$.offset| .cse0) .cse1) (select (select |#memory_$Pointer$.base| .cse0) .cse1))))) ((_ sign_extend 32) (_ bv0 32)))) (= |old(~ldv_module_refcounter~0)| ~ldv_module_refcounter~0)) [2018-11-18 12:39:35,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:39:35 BoogieIcfgContainer [2018-11-18 12:39:35,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:39:35,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:39:35,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:39:35,732 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:39:35,734 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:39:28" (3/4) ... [2018-11-18 12:39:35,736 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_init [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_create [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_final_state [2018-11-18 12:39:35,742 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_try_module_get_1 [2018-11-18 12:39:35,743 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put [2018-11-18 12:39:35,743 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure pppox_exit [2018-11-18 12:39:35,743 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2018-11-18 12:39:35,743 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_blast_assert [2018-11-18 12:39:35,743 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_module_put_2 [2018-11-18 12:39:35,747 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 12:39:35,747 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 12:39:35,747 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:39:35,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) [2018-11-18 12:39:35,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 12:39:35,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 12:39:35,769 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) [2018-11-18 12:39:35,770 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 12:39:35,770 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter [2018-11-18 12:39:35,793 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_30e06bb1-2771-4e10-8393-d9f3ff098e62/bin-2019/utaipan/witness.graphml [2018-11-18 12:39:35,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:39:35,794 INFO L168 Benchmark]: Toolchain (without parser) took 8328.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.7 MB). Free memory was 937.9 MB in the beginning and 975.2 MB in the end (delta: -37.4 MB). Peak memory consumption was 193.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:35,795 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:35,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1022.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 937.9 MB in the beginning and 1.0 GB in the end (delta: -86.9 MB). Peak memory consumption was 167.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:35,795 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:35,795 INFO L168 Benchmark]: Boogie Preprocessor took 31.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:39:35,796 INFO L168 Benchmark]: RCFGBuilder took 437.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 985.3 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:35,796 INFO L168 Benchmark]: TraceAbstraction took 6746.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.9 MB). Free memory was 985.3 MB in the beginning and 982.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:35,796 INFO L168 Benchmark]: Witness Printer took 61.85 ms. Allocated memory is still 1.3 GB. Free memory was 982.5 MB in the beginning and 975.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:39:35,797 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1022.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 937.9 MB in the beginning and 1.0 GB in the end (delta: -86.9 MB). Peak memory consumption was 167.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 437.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 985.3 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6746.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 72.9 MB). Free memory was 985.3 MB in the beginning and 982.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 75.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.85 ms. Allocated memory is still 1.3 GB. Free memory was 982.5 MB in the beginning and 975.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5012]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) - InvariantResult [Line: 4883]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4971]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: !(1bv32 == \old(ldv_module_refcounter)) || 1bv32 == ldv_module_refcounter - InvariantResult [Line: 4955]: Loop Invariant Derived loop invariant: 1bv32 == ldv_module_refcounter || !(1bv32 == \old(ldv_module_refcounter)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 78 locations, 1 error locations. SAFE Result, 6.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 456 SDtfs, 329 SDslu, 1776 SDs, 0 SdLazy, 588 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 194 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 91 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 125 PreInvPairs, 143 NumberOfFragments, 662 HoareAnnotationTreeSize, 125 FomulaSimplifications, 383 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 28 FomulaSimplificationsInter, 1636 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 12 QuantifiedInterpolants, 84085 SizeOfPredicates, 27 NumberOfNonLiveVariables, 728 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...